获得深度点kinect v2的问题

Question

我真的很擅长使用kinect，所以请给我一些懈怠。我试图通过鼠标点击图像来获取帧中的深度点。我能够成功获得像素（x，y）。但是，当我尝试使用此代码从特定点获取深度我得到一些错误，我不确定为什么。我得到的depthFrame和ColorFrame存储在cvMats中。有人告诉我使用depthFrame.at，我无法找到任何信息。

同样来自微软网站，这是我成功获得所需值的参数。

public void MapDepthPointsToCameraSpace (
         DepthSpacePoint[] depthPoints,
         UInt16[] depths,
         CameraSpacePoint[] cameraPoints
)

我只需要获取depthFrame并将其存储到Uint16类型的数组中吗？

  

错误C2974：＆＃39; cv :: Mat :: at＆＃39; ：＆＃39; _Tp＆＃39;的无效模板参数，输入预期

       // Get the depth at pixel (col, row) 
        UINT16 depth = depthFrame.at<depthFrame.type()>(rows,cols);

        // Create a DepthSpacePoint based on row, col
        DepthSpacePoint depthPoint = { 0 };
        depthPoint.X = static_cast<float>(origin.x); // u
        depthPoint.Y = static_cast<float>(origin.y); // v

         //CameraSpacePoint to store (X, Y, Z)
        CameraSpacePoint cameraPoint = { 0 };
         //Map the DepthSpacePoint to the CameraSpacePoint
        m_pCoordinateMapper->MapDepthPointToCameraSpace(depthPoint,depth,&cameraPoint);

        // Access X, Y, Z
        float x = static_cast<float>(cameraPoint.X);
        float y = static_cast<float>(cameraPoint.Y);
        float z = static_cast<float>(cameraPoint.Z);